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Casteel Family Foundation at a glance

· Private foundation

Casteel Family Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$125k
Granted FY2025still arriving
4
Grants FY2025still arriving
3
States reached
$50k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Animals$161kCivil Rights$155kEnvironment$80kPhilanthropy$50kCrime & Legal$40kArts & Culture$31kHealth$25kCommunity Improvement$25kOther$0
02FY2025 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k3 grants · $75k
  • $50k–250k1 grant · $50k
$25,000
Median grant
3
States reached
$180k
Total assets
Largest grants
RecipientAmount
ALLIANCE FOR TOMPOTIKA CONSERVATION$50,000
PLANNED PARENTHOOD$25,000
THE CLIMATE CENTER$25,000
ACLU FOUNDATION$24,918
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY20–21, $4k) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%CERES COMMUNITY PROJECT: $3k → 9%CERES COMMUNITY PROJECT: $1k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

70%of every dollar goes to organizations it has funded before.
$386k · 7 repeat orgs$166k to everyone else

Grantees it renews have grown median revenue +53% since the first grant, against +48% for those funded once.

7 repeat relationships: 3 still active in FY2025, 4 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

7
16

Total granted

$386k
$141k

Median revenue growth · since first grant

+53%
+48%

Still filing today

100%
69%

New vs renewed · share of each year

In FY2025, 80% of grant dollars renewed an existing relationship; $25k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Civil RightsEducationAnimalsFood & NutritionCrime & LegalArts & CultureOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • AF
    ALLIANCE FOR TOMPOTIKA CONSERVATION
    9× · 2017–2025 · $160k · revenue +78%
  • AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC
    4× · 2019–2025 · $120k · revenue +49%
  • TC
    The Climate Center
    2× · 2022–2025 · $55k · revenue +53%

Funded once

  • CF
    CENTER FOR CLIMATE
    one grant, 2020 · $25k
  • OG
    ONE GOAL-BAY AREA
    one grant, 2020 · $25k
  • NAACP LEGAL DEFENSE & EDUC FUND INC
    one grant, 2020 · $25k · revenue -54%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
American Civil Liberties Union of Northern California

The american civil liberties union of northern california (aclu nc union) defends and advances the principles of freedom, equality and justice contained in the united states constitution. aclu nc union, a california mutual benefit…

—
2
Asociacion Interamericana Para La Defensa Del Ambiente

To strenghten people's ability to guarantee their individual and collective right to a healthy environment, via the development, implementation, and effective enforcement of national and international law.

Crime & Legal
3
Jobs with Justice San Francisco

A long-term, strategic alliance of labor, community, faith-based, and student organizations working together to build greater economic power for workers and community members through employee rights at work and access to good jobs,…

Employment
4
Open Markets Institute

The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.

Education
5
Asian Law Caucus

The Asian Law Caucus's mission is to promote, advance, and represent the legal and civil rights of Asian American Pacific Islander (AAPI) communities, recognizing that social, economic, political and racial inequalities continue to exist…

Crime & Legal
6
American Civil Liberties Union Foundation of Northern California Inc

The american civil liberties union foundation of northern california (aclu nc foundation) defends and advances the principles of freedom, equality and justice contained in the united states constitution. aclu nc foundation, a california…

—
7
Legal Aid Association of California

The Legal Aid Association of California, the statewide membership of legal services nonprofits, serves its members through advocacy and other support in efforts to provide legal assistance to low-income Californians and ensure access to…

—
8
Aclu Foundation of Southern California

See schedule o for detailsthe organization defends the civil liberties enshrined in the us constitution and the bill of rights through litigation, policy advocacy, media advocacy, and organizing. it fights to secure and protect the civil…

Civil Rights
9
Civil Liberties Defense Center

CIVIL LIBERTIES DEFENSE CENTER (CLDC) educates the general public about their rights and privileges under the US Constitution and provides free legal support to climate and social justice activists.

Civil Rights
10
Public Advocates Inc

For more than five decades, public advocates has challenged the systemic causes of poverty and racial discrimination by strengthening community voices in public policy and achieving tangible legal victories advancing education, housing,…

—
11
American Civil Liberties Union Foundation of Louisiana

To support the work of the amercian civil liberties union of louisiana through litigation, public education and limited lobbying in support of civil liberties.

Civil Rights
12
Lawyers Committee for Civil Rights of the San Francisco Bay Area

As one of the most enduring civil rights institutions on the West Coast, we work to dismantle systems of oppression and racism, and build an equitable and just society.

—
How this is measured
The grantee most central to the portfolio’s shape is Her Justice Inc; the most unlike its peers is Start Soco. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

19 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 19 of the 25 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
6
Early backer (in before they grew)
19/19
Grantees still filing
16/19
Grew since first funded

Where the money sits, by cause and then by grantee

ALLIANCE FOR TOMPOTIKA CONSERVATION: $159,992 · AnimalsALLIANCE FOR TOMPOTIKA CONSERV…+1 more: $1,000 · AnimalsAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $120,171 · Civil RightsAMERICAN CIVIL LIBERTIES UN…NAACP LEGAL DEFENSE & EDUC FUND INC: $24,815 · Civil RightsNAACP LEGAL DEFENSE & EDUC …+1 more: $3,000 · Civil RightsPLANNED PARENTHOOD: $25,000 · OtherPLANNED PARENTHOODCENTER FOR CLIMATE: $24,815 · OtherCENTER FOR CLIMATEONE GOAL-BAY AREA: $24,815 · OtherONE GOAL-BAY AREAHENRY ART GALLERY: $14,940 · OtherHENRY ART GALLERYACLU FOUNDATION OF SAN DIEGO & IMPERIAL COUNTIES: $8,000 · OtherACLU FOUNDATION OF SAN D…SANTA ROSA ARTS CENTER: $5,000 · OtherSTART SOCO: $6,000 · OtherSanta Rosa Players DBA 6th Street Playhouse: $5,000 · OtherTHE CERES COMMUNITY PROJECT: $4,500 · OtherLEAP INC: $5,000 · Other+2 more: $6,000 · OtherThe Climate Center: $54,856 · EducationThe Climate …SHINING HOPE FOR COMMUNITIES INC: $7,000 · EducationSHINING HOPE…HER JUSTICE INC: $5,000 · EducationHER JUSTICE …SONOMA COUNTY COMMUNITY FOUNDATION: $50,135 · PhilanthropySONOMA CO…LEGAL AID OF SONOMA COUNTY: $34,872 · Crime & LegalSOUTHERN POVERTY LAW CENTER INC: $2,000 · Crime & LegalFood Empowerment Project: $6,000 · Food & NutritionGOD'S LOVE WE DELIVER INC: $5,000 · Food & Nutrition
Animals$160,992Civil Rights$147,986Other$129,070Education$66,856Philanthropy$50,135Crime & Legal$36,872Food & Nutrition$11,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetALLIANCE FOR TOMPOTIKA CONSERVATION: $159,992 over 9y, 6.0% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $120,171 over 4y, 0.0% of budgetThe Climate Center: $54,856 over 2y, 1.2% of budgetSONOMA COUNTY COMMUNITY FOUNDATION: $50,135 over 2y, 0.1% of budgetLEGAL AID OF SONOMA COUNTY: $34,872 over 2y, 0.7% of budgetNAACP LEGAL DEFENSE & EDUC FUND INC: $24,815 over 1y, 0.0% of budgetACLU FOUNDATION OF SAN DIEGO & IMPERIAL COUNTIES: $8,000 over 1y, 0.2% of budgetSHINING HOPE FOR COMMUNITIES INC: $7,000 over 1y, 0.1% of budgetFood Empowerment Project: $6,000 over 2y, 0.3% of budgetSTART SOCO: $6,000 over 2y, 3.2% of budgetGOD'S LOVE WE DELIVER INC: $5,000 over 1y, 0.0% of budgetLEAP INC: $5,000 over 1y, 0.1% of budgetSanta Rosa Players DBA 6th Street Playhouse: $5,000 over 1y, 0.5% of budgetTHE CERES COMMUNITY PROJECT: $4,500 over 3y, 0.1% of budgetGIVEDIRECTLY INC: $3,000 over 1y, 0.0% of budgetVOTEORG: $3,000 over 1y, 0.3% of budgetSOUTHERN POVERTY LAW CENTER INC: $2,000 over 1y, 0.0% of budgetANIMAL LEGAL DEFENSE FUND INC: $1,000 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Sonoma County Communi…Vanguard Charitable E…Network for GoodThe Bank of America C…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Sonoma County Community FoundationCA13.5× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sonoma County Community Foundation · Vanguard Charitable Endowment Program · Network for Good · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Casteel Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Casteel Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–15%
    typical government reliance, FY20–25
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Casteel Family Foundation?

    Find your warmest path to Casteel Family Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 25 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Casteel Family’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home